CHIANG Jeffrey · BANANA
281rank
-110.8Butler · 112 bds
-0.99per board
±5.1swing
-0.49vs par /bd · #180/241
-0.63adjusted /bd
by round
vs par split: bidding -0.49 · play +0.00
Strength of schedule: opponents averaged +0.36/bd (a tough draw) → opponent-adjusted -0.63/bd
Card play — on target: opening leads 87.9% #45 of 241 · declarer play 72.0% #155 of 241 · defence 84.1% #161 of 241
Bidding activity — not a pass: 38.6% #194 of 241 (131/339)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 77.8% (9) | 91.7% (24) |
| Declarer play | 50.0% (6) | 78.9% (19) |
| Defence | 85.7% (21) | 83.3% (42) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 100.0% (6) · ♦ 71.4% (7) · ♣ 93.3% (15)
vs par by strain: NT +1.31 (32) · a suit -1.21 (80)
vs par by level: part-score -1.13 (23) · game +0.18 (77) · slam -3.58 (12)
By role: declaring -1.05/bd (-4.00 vs par · 49) · defending -0.94/bd (+2.24 vs par · 63)
By vulnerability: vulnerable -1.13/bd (+0.12 vs par · 56) · not vulnerable -0.85/bd (-1.11 vs par · 56)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Li | W.Forys – S.Pancewicz | Open | 14 | +4.8 | +0.34 | -0.64 |
| Round 2 | H.Koo | M.Lanzarotti – D.Attanasio | Closed | 14 | +5.9 | +0.42 | +0.07 |
| Round 3 | W.Wong | A.Vikor – P.Talyigas | Closed | 14 | -20.4 | -1.46 | -1.14 |
| Round 4 | D.Chui | J.Amiguet – S.Magnusson | Closed | 14 | -19.9 | -1.42 | -1.57 |
| Round 5 | D.Chui | Y.Chumak – E.Kupriianov | Open | 14 | -34.9 | -2.49 | -0.79 |
| Round 6 | D.Chui | M.Ter Laare – W.Alkemade | Closed | 14 | -11.1 | -0.79 | +1.71 |
| Round 7 | S.Li | P.Solecki – S.Janik | Open | 14 | -41.0 | -2.93 | -2.07 |
| Round 8 | D.Chui | D.Kroening – O.Karimi | Open | 14 | +5.8 | +0.41 | +0.50 |
Every board — best Butler first↑ top
vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.
| Butler | Round | Opponents | Bd | Contract | Lead | Res | vs par |
|---|---|---|---|---|---|---|---|
| +15.1 | Round 4 | ISTARI | 23 | 4♥x | ♣8 | -3 | +16 |
| +11.6 | Round 2 | BRENO | 23 | 5♣x | ♠A | = | +11 |
| +10.2 | Round 2 | BRENO | 21 | 3NTx | ♦Q | = | +8 |
| +8.2 | Round 5 | JUSTJUMP | 12 | 5♦ | ♠J | +1 | +11 |
| +8.0 | Round 8 | BAMBI | 26 | 4♥ | ♣2 | +1 | +0 |
| +7.0 | Round 1 | WARSAW UNIVERSITY | 5 | 5♣ | ♥4 | = | +0 |
| +6.9 | Round 8 | BAMBI | 22 | 4♠ | ♦J | = | +0 |
| +6.6 | Round 8 | BAMBI | 27 | 4♠ | ♣A | = | +7 |
| +5.9 | Round 3 | NEW BROOM | 6 | 1NT | ♦K | -3 | +5 |
| +5.8 | Round 4 | ISTARI | 18 | 5♥ | ♦7 | -1 | +11 |
| +5.6 | Round 6 | VALLON BRIDGE | 17 | 5♦x | ♠Q | = | +4 |
| +5.0 | Round 1 | WARSAW UNIVERSITY | 1 | 3NT | ♣5 | -1 | +5 |
| +4.8 | Round 2 | BRENO | 15 | 2♠ | ♣T | +1 | +0 |
| +4.8 | Round 6 | VALLON BRIDGE | 27 | 3♣ | ♣2 | +1 | +7 |
| +4.3 | Round 3 | NEW BROOM | 7 | 7♠ | ♣K | = | +0 |
| +4.3 | Round 5 | JUSTJUMP | 5 | 5♥ | ♦A | -1 | +10 |
| +4.0 | Round 1 | WARSAW UNIVERSITY | 6 | 3NT | ♣Q | = | +0 |
| +3.9 | Round 1 | WARSAW UNIVERSITY | 11 | 3NT | ♠T | +1 | +0 |
| +3.7 | Round 8 | BAMBI | 24 | 4♥ | ♣T | -2 | +6 |
| +3.0 | Round 2 | BRENO | 27 | 2♥ | ♠5 | = | -1 |
| +2.8 | Round 1 | WARSAW UNIVERSITY | 9 | 3NT | ♠3 | -1 | +10 |
| +2.6 | Round 4 | ISTARI | 26 | 3♥ | ♥4 | -1 | +12 |
| +2.4 | Round 8 | BAMBI | 15 | 2NT | ♦6 | +1 | +6 |
| +2.3 | Round 2 | BRENO | 17 | 4♠ | ♥A | -1 | -2 |
| +2.3 | Round 3 | NEW BROOM | 5 | 4♠ | ♥K | -2 | +5 |
| +2.1 | Round 6 | VALLON BRIDGE | 22 | 4♥ | ♠J | -1 | +5 |
| +1.7 | Round 6 | VALLON BRIDGE | 15 | 6♠ | ♣2 | +1 | +13 |
| +1.6 | Round 5 | JUSTJUMP | 6 | 4♥ | ♥3 | +2 | -1 |
| +1.6 | Round 6 | VALLON BRIDGE | 18 | 3NT | ♥Q | = | +5 |
| +1.6 | Round 8 | BAMBI | 20 | 1NT | ♠A | -1 | +0 |
| +1.5 | Round 7 | LYSY SOLEK | 13 | 3NT | ♠6 | -2 | +8 |
| +1.2 | Round 5 | JUSTJUMP | 7 | 6♥ | ♣3 | -1 | +17 |
| +1.1 | Round 1 | WARSAW UNIVERSITY | 12 | 3♦ | ♥5 | = | -1 |
| +1.0 | Round 2 | BRENO | 24 | 4♥ | ♦A | -1 | +5 |
| +0.9 | Round 5 | JUSTJUMP | 10 | 4♠ | ♣K | -1 | +6 |
| +0.9 | Round 6 | VALLON BRIDGE | 19 | 3NT | ♦2 | +1 | +11 |
| +0.8 | Round 2 | BRENO | 26 | 4♠ | ♣5 | = | +0 |
| +0.8 | Round 3 | NEW BROOM | 11 | 4♥ | ♦6 | = | +1 |
| +0.7 | Round 1 | WARSAW UNIVERSITY | 14 | 3NT | ♠T | = | -1 |
| +0.6 | Round 7 | LYSY SOLEK | 8 | 3NT | ♠6 | +2 | -10 |
| +0.5 | Round 3 | NEW BROOM | 2 | 4♠ | ♥2 | +2 | -12 |
| +0.4 | Round 3 | NEW BROOM | 1 | 2NT | ♥2 | +1 | -6 |
| +0.4 | Round 7 | LYSY SOLEK | 2 | 4♥ | ♠J | -1 | +12 |
| +0.3 | Round 1 | WARSAW UNIVERSITY | 2 | 4♥ | ♠8 | = | -1 |
| +0.3 | Round 2 | BRENO | 28 | 4♠ | ♣9 | +1 | +0 |
| +0.3 | Round 6 | VALLON BRIDGE | 26 | 4♥ | ♣8 | = | -1 |
| +0.3 | Round 7 | LYSY SOLEK | 6 | 4♥ | ♥3 | = | +0 |
| +0.3 | Round 8 | BAMBI | 25 | 3NT | ♥J | = | +2 |
| +0.2 | Round 1 | WARSAW UNIVERSITY | 7 | 4♠ | ♣A | +1 | +0 |
| +0.2 | Round 6 | VALLON BRIDGE | 20 | 4♥ | ♣3 | = | -1 |
| +0.1 | Round 5 | JUSTJUMP | 14 | 4♠ | ♦6 | = | +0 |
| -0.0 | Round 1 | WARSAW UNIVERSITY | 10 | 4♥ | ♠3 | -2 | +2 |
| -0.0 | Round 7 | LYSY SOLEK | 3 | 5♣x | ♠A | -1 | -5 |
| -0.2 | Round 3 | NEW BROOM | 3 | 3NT | ♥9 | +1 | +0 |
| -0.2 | Round 4 | ISTARI | 17 | 4♥ | ♦J | +2 | -1 |
| -0.4 | Round 3 | NEW BROOM | 10 | 3NT | ♦J | = | +0 |
| -0.4 | Round 7 | LYSY SOLEK | 9 | 3NT | ♦9 | +1 | -1 |
| -0.4 | Round 8 | BAMBI | 19 | 3NT | ♦J | +2 | +0 |
| -0.6 | Round 4 | ISTARI | 16 | 4♥ | ♣A | +1 | +0 |
| -0.7 | Round 1 | WARSAW UNIVERSITY | 3 | 3♠ | ♥T | -1 | -2 |
| -0.8 | Round 4 | ISTARI | 19 | 3NT | ♥5 | +2 | +12 |
| -0.8 | Round 8 | BAMBI | 23 | 4♠ | ♦A | -2 | -7 |
| -1.0 | Round 4 | ISTARI | 25 | 5♣ | ♥2 | -2 | +1 |
| -1.0 | Round 8 | BAMBI | 21 | 3NT | ♠Q | +2 | +10 |
| -1.1 | Round 2 | BRENO | 20 | 2NT | ♠6 | +1 | -1 |
| -1.2 | Round 2 | BRENO | 19 | 3♦ | ♥2 | -1 | +0 |
| -1.6 | Round 5 | JUSTJUMP | 8 | 2♠ | ♦7 | = | +0 |
| -1.7 | Round 2 | BRENO | 22 | 3NT | ♠2 | +2 | +10 |
| -1.7 | Round 3 | NEW BROOM | 9 | 3NT | ♦J | +1 | +1 |
| -1.9 | Round 6 | VALLON BRIDGE | 16 | 4♥ | ♦A | +2 | -1 |
| -2.3 | Round 6 | VALLON BRIDGE | 25 | 2♠ | ♣9 | = | -5 |
| -2.3 | Round 7 | LYSY SOLEK | 1 | 2♠ | ♣8 | -1 | -4 |
| -2.4 | Round 1 | WARSAW UNIVERSITY | 8 | 4♠ | ♥5 | +2 | -11 |
| -2.4 | Round 7 | LYSY SOLEK | 14 | 4♥ | ♠Q | +1 | -4 |
| -2.8 | Round 4 | ISTARI | 28 | 3♠ | ♣A | +1 | -1 |
| -2.8 | Round 6 | VALLON BRIDGE | 24 | 7♠ | ♦2 | = | +0 |
| -2.8 | Round 7 | LYSY SOLEK | 10 | 2NT | ♦2 | +1 | -1 |
| -2.9 | Round 5 | JUSTJUMP | 2 | 3NT | ♥2 | +1 | -1 |
| -2.9 | Round 8 | BAMBI | 18 | 5♦ | ♥Q | = | +0 |
| -3.4 | Round 1 | WARSAW UNIVERSITY | 4 | 4♦ | ♦3 | -4 | +5 |
| -3.7 | Round 7 | LYSY SOLEK | 12 | 3♠ | ♥6 | = | +0 |
| -3.8 | Round 3 | NEW BROOM | 12 | 3NT | ♣K | = | +0 |
| -4.2 | Round 8 | BAMBI | 28 | 3NT | ♠4 | = | +0 |
| -4.3 | Round 4 | ISTARI | 21 | 5♦ | ♠2 | +2 | -13 |
| -4.3 | Round 7 | LYSY SOLEK | 5 | 4♠ | ♣6 | +1 | -1 |
| -4.5 | Round 3 | NEW BROOM | 13 | 5♦ | ♣6 | = | +13 |
| -5.0 | Round 4 | ISTARI | 15 | 4♥ | ♣2 | +1 | -17 |
| -5.1 | Round 2 | BRENO | 18 | 4♥ | ♦A | -1 | -10 |
| -5.1 | Round 8 | BAMBI | 17 | 4♠ | ♦Q | -1 | -10 |
| -5.4 | Round 3 | NEW BROOM | 14 | 5♣x | ♥K | -2 | -5 |
| -5.4 | Round 5 | JUSTJUMP | 4 | 3♦ | ♥6 | = | -11 |
| -5.5 | Round 5 | JUSTJUMP | 11 | 3NT | ♠3 | +1 | -1 |
| -5.7 | Round 4 | ISTARI | 22 | 1NT | ♥7 | +1 | -13 |
| -5.7 | Round 7 | LYSY SOLEK | 11 | 6♠ | ♣J | = | +0 |
| -6.7 | Round 4 | ISTARI | 27 | 3NT | ♦K | = | -6 |
| -6.7 | Round 6 | VALLON BRIDGE | 28 | 4♠ | ♣2 | = | -10 |
| -6.8 | Round 4 | ISTARI | 24 | 6♦ | ♣7 | +1 | -11 |
| -6.8 | Round 6 | VALLON BRIDGE | 21 | 3♦ | ♠J | -4 | -3 |
| -7.2 | Round 3 | NEW BROOM | 8 | 4♠ | ♦J | = | -8 |
| -7.8 | Round 5 | JUSTJUMP | 3 | 4♠ | ♥A | = | +0 |
| -7.8 | Round 6 | VALLON BRIDGE | 23 | 6♦ | ♣A | = | +0 |
| -8.0 | Round 5 | JUSTJUMP | 13 | 5♦x | ♠K | -1 | -13 |
| -8.2 | Round 2 | BRENO | 16 | 4♠ | ♦7 | = | -7 |
| -8.9 | Round 5 | JUSTJUMP | 9 | 6♣ | ♠4 | -1 | -14 |
| -9.3 | Round 8 | BAMBI | 16 | 7♠x | ♣A | -4 | -7 |
| -9.5 | Round 4 | ISTARI | 20 | 6♦ | ♥2 | -1 | -12 |
| -9.9 | Round 7 | LYSY SOLEK | 7 | 4♥x | ♣K | = | -11 |
| -10.8 | Round 2 | BRENO | 25 | 3♥x | ♣A | = | -12 |
| -11.1 | Round 5 | JUSTJUMP | 1 | 6♠ | ♦6 | -1 | -14 |
| -11.4 | Round 3 | NEW BROOM | 4 | 3NT | ♠A | = | -10 |
| -12.3 | Round 7 | LYSY SOLEK | 4 | 5♣ | ♥5 | -1 | -12 |
| -13.7 | Round 1 | WARSAW UNIVERSITY | 13 | 7♥ | ♦A | -1 | -15 |